Type-writing machine.



W. C. FARNUM.

TYPE WRITING MACHINE.

APPLICATION FILED APR. u, 1903,

Patented Nov. 24, 1908.

4 SHEETS-SHEET 3.

W. C. FARNUM.

TYPE WRITING MACHINE.

APPLICATION FILED APR.9, 1903. 904,688. Patennd N0v.24,1908.

V SHEETS-SHEET 4.

UNITED sTATEs PATENT oEEicE.

WILLIAM C. FARNUM, OF ARLINGTON, VERMONT, ASSIGNOR- TO WYCKOFF, SEAMANS & BENEDICT, OF ILION, NEW YORK, A CORPORATION OF NEW YORK.

TYPE-WRITIN G MACHINE.

Specification of Letters Patent.

Patented Nov. 24, 1908.

Application filed April 9, 1903. Serial No. 151,823.

Machines, of which the following 1s a speci,

Iication.

My invention relates more particularly to" means for arresting the paper-carriage and for locking the escape-Wheel and rocker-arm at the end of a predetermined line; to means for releasing the paper-carriage and escapewheel and rocker-arm so that additional characters may be printed beyond the predetermined point after the carriage has been once arrested and the escape-wheel and rocken-arm have been locked; to a final carriage-stop and a final lock for the escape- Wheel and rocker-arm; to a bell mechanism to give warning of the approach to the end of the printing line; to means for arresting the carriage on its return movement at a predetermined point so as to givexa predetermined margin; to meansI for enabling the carriage to Write within the predetermined margin; to improved constructions ot line,

margin and carriage-stops; to means for ad- A' justing the paper and platen through minute distances in the direction of the printing line; to means for adjusting the relation between the carriagerack and pinion; to means for connecting the carriage-truck and thevcarriage-rack; and to various other improvements and combinations of devices hereinafter set forth.

While I have shown my invention as applied to the typewriter known as the Remington No. 6 machine, it will of course be understood that the improvements may be embodied in other styles or types of machines without departing from the spirit of my invention.

In the accompanying drawings, Figure 1 is a top plan view of the machine, showing at therear thereof my improvement in plan. Fig. 2 is a sectional elevation of the machine taken on the line ae a: of Fir. 1. Fig. 3k is a rear elevation of the machine. Fig. 4 isa fragmentary sectional View looking towards the right and in the rear of the machine,

showing a portion of the carria e arresting means and of the escape-Whee and doglocking means. Fig. 5 is a perspective -View of a portion of the escapement or carriagefeed mechanism. Fig. is a. fragmentary rear View of a portion of the escape-wheel and dog-rocking arm, with a portion of the means for locking the same. Fig. 7 shows the lme stop on the stop-rack, the connectlon with the stop-rack being such as is common to all the stops. Fig. 8 is a rear View of the right-hand portion of the means for the longitudinal adjustment of the carriage-rack.

i Figs. 9, 10, 11and 12 are detail views of the same, Fig. 10 being a sectional 4View on the line y jl/ of Fig. 8. Fig. 13 is a perspective view of the stop-rack bar and stops and Fig. 11. a view of the carriage-feed rack bearing. Throughout the drawings various parts have been omitted or broken away in order to more clearly disclose my improvements.

Like numerals of reference designate like parts in the various views.

1 designates the base of the machine frame, 2 the frame uprights or posts, 3 the 4 y top-plate thereon, 1 the lugs supporting the rear carriage rail 5, on which run the rear wheels 6, mounted in the truck 7, to which is connected the swinging platen-carrier 8; 9 being the platen therein and 1() the front wheel running on the shift-rail 11, as is cus' tomary in the Remington No. (i machine. The carriage, as is usual, is connected to the spring-drum or box 12, by means of the band 13. The type-bars 14, mounted in hangers 15, are connected by the connecting rods 0r wires 16 to the key-levers 17, fulcrumed at 18 and mounting at their forward ends the key-buttons or caps 19. Each depression of a key-lever 17, or of the spacebar 20, depresses the universal bar 2l connected -by the connecting wires 2*?. to the laterally extending arms 23, which are attached to the horizontal arm 24 of a vibrating member or rocker 9.5, this last in turn being pivoted in the supplemental frame 26 depending from the top-plate 3.

The vertical arm 27 of the rocker 25 is bifurcated at the upper end, as shown most clearly in Fig. 5, and the rear prong or fork :28 of the bifurcation is bent substantially at right angles to arm 27 and to the left thereof, viewed from the rear, while the forward prong or fork' 29 is similarly bent to the right.

The bent prong 29 actuates the train of mechanism causing the letter-space feeding movement of the carriage, and which, as it plication Serial No. 148,942, led March 2l. 1903, it is unnecessary to describe with any great degree of particularity. T lie-letterspace feeding mechanism acts upon the carriage truck 7 through the rack 30, attached thereto in a manner hereinafter described; and the pinion 31. The said pinion 31'is xed upon the forward end of shaft 32.- which shaft carries at its rear end the toothedy escape-wheel, 33 having teeth 33a, and is supported .in bracket 34 on the tcpplate 3.' The bracket 34 also serves as a bearing for the dog-shaft 35 (Fig. 3) on which is pivoted the holding dog 36 and the loose dog 37 controlled thereby, the holdingdog 36 having on its lower face the teat or lug 38 (Figs, 3 and 5) which plays in a slot 39 in the horizontal vibratory piece 40. Piece 40 is pivoted on the vertical shaft y41 which has its bearings in the bracket 34 and top plate 3. The piece 40 is held normally against its rear stop 42 by the spring 43, and is turned clock-wise against the tension of 'said spring 43 bythe fork 29 of arm A27 acting on the opposite end of piece 40 whenever the rocker-arm 27 is rocked forward under action of the finger-keys 19 or space? key 20. v When the finger-key or space-bar is released, the spring 43 tends to return the piece 40 against stop 42, and this vibra-tory action of the piece 40 between stops 42 and 44 controls the escapement or letter-space feed movement through the teat 38 of holding-dog 36, as explained more in detail in my aforesaid pending 'application Serial No. 148,942. It will be* understood, therefore, that whenever the rocker-arm 27 is held from forward movement under the key action, no motion of the escapement mechanism can take place nor can the type-bar print, since the universal bar 21, connected as described to the rocker 25 and rocker-arm 27,'prevents the depression of key-levers 17. The mechanism for accomplishing this result will now be explained. Supported in the lugs 45 at the rear of the top-plate is the guide-rod 46, which is embraced by the lug 47 extending rearwardly from the' carriage-truok 7,' as is usual. Pivoted on the guide-rod- 46 and in proximity to the supporting lugs 45 are the end pieces 48 joined by the cross-piece 49, the whole forming an integral U-shaped piece or rocking bar with bearings on guide-rod 46, as appears most clearly in Figs. 1 and 3.` Loosely pivoted in the 'tops of en'd pieces 48 is the stop-rack 50, carrying bell-trip 51, line-stop 52 and margin-stop 53. The stop-rack 50 is a square rod having teeth 54 on one corner only (the upper right-hand corner as viewed in Fig. 7), and has a horizontal slot cut in its front vertical surface. Each of the stops 51, 52 and 53 has a horizontal lip 56 entering this slot 55, and each isi prevented.v from withdrawing from the slot by the rear upcommon to all the stops 51, 52 and 53, and

it will be understood that while each is freely movable longitudinally of the stoprack 50, Vit 4cannot be removed nor knocked Aloose therefrom without dismembering the stop.k

Forward of the stop rack 50, lthe belltripl stop 51 is provided with the' usual pivoted bell-trip cam 61 (Figs. 1 and 13) The confining lip 55 of the margin-stop 53 broadens out forwardly into aplate 62 (Figs. l and 13) having a camming face 63 at the left side and an upwardly projecting pin 64 at the' right side, as viewed in Figs. 1 and 13. The

forward portion 65 of the line-stop 52 has a,

slot 66 (Figs. 4, 7 and 13) at about the vertical center and extending to within ak short distance of the left vertical face. 'At the right side of 65 is the camming face 67.

Fixed in the rearwardly projecting guide lug 47 is the vertical rod 68 which serves as a bearing for the carriage-stop 69. This latter is in the form of a collar with a top rim 70, and is normally held in contact with the guide lug 47 by the spiral spring 71, which is confined between the screwtop 72 and the rim 70, as shown in Figs. 2 and 4.

Referring now to Figs. 1, 3 and 4, 73 denotes a pin projecting from the'lower end 48a of, the right-hand end-piece 48 and adapted to be embraced by the bifurcated, upturned end 74 of the .horizontal locking bar 75. The locking bar 75 has a forwardly projecting branch or arm 76 at the end of which is the bearing 77, whichis in the form of a screw screwed into the top-plate 3. The locking bar is normally held in contact with the top-plate 3 by the spring 78, and has, near the upright end 74, a Slot 79 affording play for the guiding and limiting screw 80, screwed into vthe top-plate The left-handsend of the locking bar 75 carries a locking teat 81 extending longitudinally of the bar 75 and adaptedv to lo'ck the rear prong 28 of rocker arm 27 and a forwardly extendinr locking teat 82 adapted to lock the teeth 33a of the es'cape-wheel 33. The locking member or bar 75 is adapted-to be swung upward away from the top plate in the manner presently to be explained. In' the upward swinging movement of the bar the screw 77 serves as a pivot therefor, the bar proper being connected with the pivot 77 by the arm 76. The bar 75 `is prevented from sliding on the top platefor rotating horizontally on the'pivot 77 by the screw 80,

the head of said'screw serving to limit the upwardswinging movement of the bar 75 about the .pivot 7 7.

The operation of the 'carriage-stop and line and margin-stop mechanisms will now be described. Suppose the carriage to be at' ing across the cam towards its highest part at the left will gradually depress the belltrip,` and as the bell-trip 51 is locked fastto stop-rack 50, the said stop-rack will be swung about its pivots in arms 48 in a clockwise direction, as viewed from the' left of the machine. The stop-rack 50, in its movement about its pivot, raises the bell ringer finger 83 screwed on the stop-rack and carrying bell-hammer 84, so that when the lip has passed the cam 61, in the course of the carriage letter-space feeding movement, the stop-rack 50 returns to its normal position and the bell ringer 84.contacting forcibly with the bell 85 on the back of the springbox 1,2, warns the operator of the approach to the end of the printing line. Having cleared the bell-trip, the rim 70 of the carriage` stop 69 will next contact, in the course of the carriage letter-space feeding movement, with the cam face 67 of the line-stop 52 below slot 66, gradually forcing the linestop towards the rear. As seen in Fig.4, this rearward movement of the line-stop 52 also forces rearwardlythe stop-rack- 50 on which it is supported, and as the stop-rack `50 is pivoted in the-upper ends of arms 48, the latter will revolve about their bearings on the guide-rod 46- andthe lower end 48a of the right-hand Aend-piece, carrying the pin 73, will berevolved towards the front of the machine until it attains the position shown in Fig. 4. The bifurcated arm 74, embracing the pin 73, will be moved upwardly and forwardly by the pin 73 and the locking bar 75 raised from the top-plate 3 against the pressure of the spring 78, said 'bar swinging upwardly about the pivot screw 77 until arrested by the head of the stop screw 80. The heads of the screws 77 'and 80 are arranged at a suicient distance above the top plate to permit the bar or member' 75 to be raised or moved upward to operative position before being arrested. The force exerted on the bar or member 75 throughth'e pin 73 tends to slide said member forward on the top plate but any sliding movement is prevented by the stems of the screws 77 and 80 and consequently the member 75 is raised from -the top plate by the force applied through the pin 73, the raising-*or upward movement of the member 7-5 continuing until said member is arrested by the head of the screw 80. i

As will be seen in Fig. 3,'the locking teats or lugs 81 and 82 lie normally lin a plane below the prong 28 of the rocker arm 27 and the teeth 33 of the escape-wheel 33.' The upward movement of the locking bar 75 raises the locking teats to the position shown in Figs. 4 and 6, and a subsequent depression of a finger-key 19 or space-bar 20 will bring the prong 28-into contact with the locking teat 81, thus preventing the forward movement of the rocker-arm 27 and the actuation of the feed-dogs36 and 37 by escape-wheel 33 and the locking bar 75 having reached the limit of its upward move'-4 ment as determined by the stop 80, the train of mechanism connecting said locking-bar with the line-stop 52 is locked and the linestop 52, being locked from further rearward movement, locks the carriage, throuo'h the rim 70 of the carriage-stop 69, from fiirther movement inthe feeding direction. Pres'- sure on the spring-mounted release rod 86, common in the Remington No. 6 machine, causesits rear upturned end 87, acting upon the finger 83 (Fig. 3), to turn thel stop-rack 50 in its bearings in the direction of the arrow in Fig. 4, until the rim 70 of the carriage-stop enters the slot 66 in the forward portion 65 of stop 52. The carriage stop 69 being spring-controlled, the stop rim 7() will enter the slot 66 readily, and as soon as 'this occurs, as`will be understood from aconsideration of Fig. 4, arm 48a will be free to returntowards the rear of the machine and the locking bar 7 5 will drop back onto the top-plate 3, releasing the escapewheel 33 and rocker-bar 27. The rim`70 having entered slot 66, as seen in Fig. 2, the carriage will be free tov move an additional number of letter spaces in the printing direction, as determlned by t-he longitudinal dimension of slot 66, (Figs. 1 and 13). When the left-hand end of the slot 66 (which is -a camming surface, as shown by the dotted line in Fig. 1) is reached, the linestop will again be forced rearwardly by thel Stop rim 70, stop arm 75 will be raised and the parts locked as before; but since the stop rim 70 remains in slot 66. a further release is prevented, and the final end of the line is thus accomplished.

On retracting the carriage, the line locking mechanism returns to its normal position 'is prevented by the limiting pin 80, `precisely as in.the case of the line-stop in the forward movement of the carriage, and the margin is thus determined. When it is desired to write within the margin, pressure u on the release-rod 86 will as before 'cause t e stop,- rack50 to revolve about its pivots, 'and the late 62 of margin-stop 53 will be brought elow the stop rin1'70, allowing the carriage to be retracted to a nal position as deter" mined by the contact of the stop-rim 70 with the vertical pin 64. Overthrow of the stoprack'O, when actuated by release-rod 86, 1s-

prevented bythe spring stop 88, screwed to the" stop-rack, 4contacting wlth guideirod 46l (Fig. 4).

The carriage-feed rack adjustments and mountings will now be' described. Referring more particularly to Figs. 1, 3, 8 and`14,y

the feed-rack has riveted toit at either end slotted brackets 89 and 90. The pivots 91 of. the rear carriage wheels 6 are prolonged rearwardly at 92 to afford supports .for the eccentric collar bearings 93. Check nuts 94 hold the ad'ustable 'collars 93 i'n position, said collars Fig. 14, f eccentric l'with relation to their 'pivots 92. When th'e check nuts 94 are i ring 98 is the chambered bearing 99 (Figs. 9

It will be understood that 98 and 99 might be one piece, but for purposes'of construction it is found more convenient 'to and 10).

turn and linish the' bearing 99 and then key or pin it to the ring 98. The front face 100- l of 99 is chambered at 101 to admit the collarieee 102. The collar-,piece 102 forms the caring for the eccentric piece 103 carrying on its front face the eccentric proper 104.,

' .l`he rearface 105 of the eccentric piece 103 1s fluted or roughened as at 105, and chamberedf at 106'to admit the collar-piece 102.

' The front face' of the chambered bearin' 99 is likewise utedpr roughened so as to aiord.

' holding contact with 103.' Pinned or otherwise fastened to the face4 of eccentric 104 isl the .handlepiece 107. Coniined between the front face of eccentric-piece 103 and the rear face of the handle-piece 107 and bearing on the eccentric 104 is the ring-like portion or eccentric-strap 108 of eccentric rod 109.

As clearly appears in Fig. 10, the parts above described are maintained inoperative relation `by the shoulder -screw 110, 'spring eing as will be seen in thus be com-4 disk. 111 and nut 112. Returning now toro( 109,'it is seen to be' pivoted at 113 to Arod 114 yunder the restraining and guiding lug 115, projecting from ratchet bracket 90. Rod 1'14 is enlarged and squared at 1'16 where it,70

passes between the lugs117 projecting from-v carriage-t`ruck 7 (Figs. land 3.),the enlarged square portion 1 16 where, 1t joinsv the (as viewed in Fig. 3) forming. shoulders -11-8. Therod 114 is threaded at-i'ts .end to receive the vcheck nuts 119, 120, for confining the spool 121, forwhich the underv surface of carriage-lug 47 forms a half bearing. Fastened inthe head-122 of this spool, which 'normally abutsagainst the left-hand vertical face of lug 47, is one end of the coiledspring 123, the other end of which' is in thesleeve Aor slidable collar` 124,- which bears normally against lugs 117. The sleeve 124is slidable' from the rear. Normally said'lsleeve or slidable collar is maintained pressed against the shoulders 118 by the coiled spring 123.v The rod 114'is normally held ina'iixed relation' to the carriage by the spring 123,- as will be clearly understood from an inspection of Figs. 1- and 3. Thesaid spring 1,23,it will be perceived, maintains the s'ool hea g 122 'cylindrical part ,of the rodf'114 at the left y on the cylindrical portion of. the rod 114 at the left of the squared portion 116 as viewed in contact'with, the'left-hand ace of lug 47,'

and forces the'rod 114 tothe letlbyv'c'ontact4 of the collarg124 with shoulders 118 'on the Arod 114. This movement' of the. rod coiltinues until the' collar.-124 contacts with the Alugs 117 on the carriage-truck 7. In assembling, as soon as the parts are thus related' the check-'nut 119v i's screwed up against the right-hand head of the spool' v121', and locked by nut 120. This'ac'tion, it will be under-I stood, establishesa normal ae'd relation-'between the carriage, the rod114,'rod. 109 and ring 108, so that when the handle 107er the ehcentric is revolved to theright lor .left a corresponding movement of the carriage to the left or rightof the' rack 30 will take place, the slots 96 thebearing brackets 89 and permittingconsiderable longitudinal play of the eccentric rack-bearings/93, Aand thus .the relation betweenthe carriage and platen 'on the Aone side 'andthe r c1630 onthe other, 'is altered. This movem nt' maybe soregulated as to make any desired pointA 011,

the paper inserted in the-machine'coincidelo'ngitudinally with the printing point, thus' facilitating'insertins and corrections.

When the carriage is'suddenly stopped vin' its movement tov the right or left, the' spring 123 actsas a buifer, l essening and' distributing the'shock of the arrest'on the/carriage rack and itspinion 31 vwhich are constantly engaged, and the engaging teethuofnwhich would be liable -torb'reakage'without a cushioning device, ,such as a buffer or s ring.

v When the carriage is'moying to the le t and is sudt'lenly arrested, the lugs 117 act as stops for the left-end portion of the spring 123 but the carriage rack tends to movc on to the left and pull the rod lll with it. The nuts 119 and 120 on the right-hand end of this rod act against the spool. 121 to urge it leftward and the flange 122 of the spool consequently presses leftward against the righthand end portion of the spring 12B. The result is that the spring is slightly compressed and thus cushions the arrest of the carriage rack 30. If the carriage be suddenly arrested during its movement towards the right, the flange 122"`of the spool 121 will serve as a stop for the spring 123, the left-hand end portion of which spring will at this time be urged rightward by thc shoulders 11S of the rod 114 acting against the sleeve 124.

It will. be seen that I provide carriage feedingdevices comprising a rack and pinion which are constantly in mesh, the rack being adjustable radially of the pinion to 'ary the relation between the teeth of said rack and pinion, means also being provided for varying the longitudinal relation between the rack and the carriage with which it is connected. Furthermore, it will'be seen that the connection between the rack and thc carriage comprises a` mechanical connection in the torn-1 of a, double acting butler device or compressiblil spring which is operative when the carriage is suddenlyv arrested during this longitudinal travel in either direction to cushion the; shock of. such arrest on the carriage rack and lessen the liability of breakage of the teeth thereof as well as of the teeth of-the cooperating pinion. Thus it will be perceived that the spring 123 serves as a double butter, acting in either direction vof the carriage n'iovement.'

"What I claim as vnew and desire to secure by Letters Patent, is

1. In a typewriting machine, the combinatiouof a carriage, step-by-step feeding devices therefor, including a ack, dogs cooperative therewith, and a vibratory member or rocker operatively connected with said dogs, and means cooperating with the carriage to stop. it. positively from movement in printing direction, said means also cooperating With the rack to lock it positively against movement and said means further cooperating with the vibatory member to lock it positively against movement.

2. In a typewriting machine, the combina tion of a carriage, step-by-step feeding devices therefor including a rack, dogs cooperative therewith, and a vibratory member or rocker operatively connected with said dogs, and line locking devices directly and positively cooperating simultaneously with said carriage, said rack and said vibratory member to lock each separately and positively.

En In a typewriting machine, the combination .of a. carriage, step-by-step feeding devices therefor including a rack, dogs coperative therewith, and a vibratory member or rocker operatively connected with said dogs, and line locking devices directly and positively cooperating simultaneously. with said carriage. said rack and said vibratory member to lock cach separately and. positively, said line locking devices heilig further operative to release or unlock said carriage, said rack and said vibrator-y member to permit ladditional characters to be printed.

4. In a typewriting machine, the combination with a carriage and its escapement mechanism including an escapement wheel, dogs, and a dog actuating rocker arm, of a rocking bai".I means carried by the carriage to rock said bar, and means actuated by said bar to engage directly `with and positively lock both the escapemcnt. wheel and the dog actuating rocker arm.

5. 'In a typewritiug machine, the combination with a carriage and its escapement mechanism including au escapement wheel, dogs, and a dog actuatii'ig rocker arm, of a roclting member, and means actuated by the rocking movement of said member to lock both the escapemeutwheel and the dog actuating rocking arm, said means comprising a member operative to engage both the escapement wheel and the rocker arm.

In a typcwriting machine. the combination with a carriage and its escapement mechanism including cooperating rack and dog-operating members, of an actuating de- 'vice on the carriage, a rocking bar adapted to be rocked thereby, and a locking bar actuated by said rocking Vbar to engage both the rack and dog operating members so as to lock the escapement.

7. In a typewritiug machine, the combination with a carriage and its .escapement mechanism including cooperating rack and dog-operating members, of au actuating device on the carriagea rocking bar adapted to be rocked thereby, and a locking bar pivotally mounted on the top plate of the machine and movable by said rocking bar into position to engage both the rack member and the dog-operating member to lock Idie escapeinent.

8. In a typewriting machine, the combination with a carriage and its escapement mechanism including` escapement dogs, an escapement wheel and dog actuating means, of an actuating device on the carriage, a rocker bar adapted to be rocked thereby, and a locking bar movable by said rocker bar to bring a locking portion of said locking bar between the teeth of said escapement Wheel and another lockinO portion of said locking bar into the path ot the dog actuating means causing the locking of both the escapement wheel and the dog actuating means.

9. In a typewriting machine, the combina.-

ment therefor including a .feed rack, feed dogs, and 'actuating means for saiddogs,` of line locking mechanism comprising a locking bar supported normally on the top plate and having'a pin and hole connection therewith; and devicesoperative ,to lift said bar from` the tog plate and cause it to lock said escapeevices at the end of the printing line. 10. Iii a typewriting-machine, the combination with a carriage and escapement flej vices ltherefor including-.a feed rack, feed d ogs and actuating means -for said dogs, of line locking' mechanism compris'i-ng a locking bar supported normally on the top plate and having a pin and hole connection therewith;

and .devices operative to lift ysaid'bar from the top plate and cause it to locksaid escapement devices a't the end of the printing line,7

.certain of said last named devices being inrect engagement with each other.

vnation of a 12. 'InaA typewriting machine, the combination with the carriage, and step-by-step feeding devices therefor including a rack, dogs fand a vibratory member or rocker operatively connected with said dogs, of line locking devices including a member havingv a lug adapted to enter the spaces between the 'teeth of said rack, said member being'provided with another lug adapted to engage with said vibratorym'ember or rocker to prevent movement thereof.

13. In a typewriting machine, thecombilaten carriage; a stop member or contact t ereon; a 'stop bar; an adjustable line stop orfcontact thereon; a frame pivoted at' the rear' of the'machine and in which said stop bar is movably mounted; a

- locking bar or plate mounted on the machine belowv said pivoted frame and operated' thereby; stop members on said locking bar or plate; escapement devices with which said last mentioned stop membersare adapted to coperate; 'and hand actuated means for moving sai-d stop bar in said pivoted frame independently ofmovementby said pivoted frame, the independent movement of sald -stop bar causingsaid line stop and the stop member on the carriage to disengage, from operative engagement.

14. In a typewriting vmachine, the `combination of a platen carriage; a stop member or Contact thereon a stop bar; an adjustable line stop or contact thereon; a frame pivoted at the rear of thc machine and in which said stop bar is'movably mounted; a locking bar or plate mounted on the machine below .said pivoted framefand operated thereby; stop members on said locking bar orvplate; and. escapement devices with which said last mentioned stop members are adapted to co- 'operata y In a typewriting machine,the combi' nation of a platen carriage; a contact carried thereby; a frame 'plvoted on a fixed part of the machine; a stop bar pivoted in4 .said frame and capable of .being bodily rev0 lved with said frame about the pivots of the'latter, said sto bar" also beingcapable of rotary movetn t about its 'own longitudinal axis; an adjustable bell-trip on said stop bar; a bell; andabell hammer adapted to be actuated by the rotarymovement of said vstop bar,.which movement is caused by the co-action between the adjustable bell trip and' the contact on the carria e.

16. In "a typewriting mach1ne,lthe combination of a platen carriage; a contact carried thereby; a vframe pivoted on a. fixed part of the machine; 'a stop bar pivoted'in Vsaid frame and capable of being'bodily revolved with saidframe about the pivots of the latter, said stop bar also being capable of rot'aryvmovement about its own longitudmal axis; an adjustable line stop onsald stop bar; a locking baror-plate arranged below saidstop bar and connected with the -framein which said ,stop bar is pivoted;

stop members carriedby said locking plate;

escapement members with which said last named sto I-memhers coperate to prevent letter spart?4 the carriage when said stop bar is caused to revolve bodily about the pivots of the framein which it is mounted;

'and' means for revolving saidvstop bar on its axis and permitting additional letter space movements of the carriage after the latter has been prevented from moving in letter space direction.

17. In a typewriting machine,l the combi-l nation of a platen carriage; a contact orstop thereon; a frame pivoted to a fixed' part of themachine; la stopbar pivoted in said frame; a limiting stop for controlling the extent of movementj of said frame; an

iis

adjustable stop or contact on said stop bar 'adapted to coperatel .with the carriage stopA 'to cause' said frame to rotateabout its pivotsl until arrestedy by said 'limiting stop,-

wherebyl further movement of the carriage is prevented; and a manually operated means to rotate'said stop bar on its longitudinal axis to free the carriage and permit further letter spacemovements thereof.

18. In a typewriting machine, the combina tion of a carriage, a feed rack carried thereby and provided with elongatedv slots, a Afeed pinion, and eccentric bearings on saidcarriage coperating withthe slots in said feed rack,'said eccentric bearings beingoperable to effect a relatve adjustment between the feed. rack and tl.: feed pinion.

19. In a typewriting machine, the combination of a carriage, a feed rack carried thereby and provided with slots, a feed pinion, eccentric 4bearings on said carriage cooperating with the slots in said feed rack and operative to effect relative adjustment between said feed rack and said feed pinion, and means for effecting a longitudinal adjustment between said carriage and said feed rack.

20. In a typewriting machine, the combination of a carriage, a feed rack carried thereby and provided with slots, a feed pinion, eccentric bearings on said carriage cooperating with the slots in said feed rack and operative to effect relative adjustment between said feed rack and said feed pinion, and means for effecting a longitudinal adjustment between said carriage and said feed rack, said last recited means vincluding an eccentric and a cooperating eccentric strap.

21. In a typewriting machine, the combination with a carriage and carriage feeding devices including a rack mounted on the carriage and a coperative pinion, of means for adjusting the rack radially of the pinion to vary the relation between the teeth of said rack andsaid pinion. A,

22. In a typewriting machine, the combination with a carriage and carriage feeding devices including a rack mounted on the carriage and a cooperative pinion,` of means for adjusting the rack radially 4of the pinion to vary-the relation between the teeth of said rack and said pinion, and meansl for varying the longitudinal relation between said rack and said carriage.

23. In a typewriting machine, the combi nation of a carrlagecarriage feeding ldevices including a rack, and a mechanical connection between said rack and said carriage, said connection yielding to permit relative movement between said rack and said carriage when the carriage is suddenly arrested during its longitudinal travel in either diiection.

'24.,111 a typewriting machine, the combi-A 25. In a typewritlng machine,l the combination of a carriage, carriage feeding devices f;

including a rack, and a connection between said rack and said carriage, said connection comprising a spring and devices by which said spring is compressed when the carriage is suddenly arrested during its longitudinal travel in either direction.

:26. In a typewriting machine, the combination of a carriage, a feed rack and a connection between the two adapted to yield when the carriage is stopped in its longitudinal movement in either' direction, said connection consisting of an arm fixed at one end to the said feed rack and having an eccentric at the other end, an eccentric strap, an eccentric rod, a rod connected to said eccentric rod and maintained in normal fixed relation with the carriage by a spiral spring.

27. In a typewriting machine, the combination of a carriage, a feed rack adjustably mounted thereon and means for effecting a relative adjustment between the feed rack and the carriage, said means consisting of an arm fixed at one end to the said feed rack and having an eccentric at the other end, an eccentric strap, an eccentric rod, and a rod connected to said ecentric rod and maintained in normalfxcd relation with the carriage by a spiral spring.

28. In a typewriting machine, the combination with a carriage of means for stopping the same at a predetermined point, said means consisting of a vertically yielding stop on the carriage, aeoperating stop yielding rearwardly to said carriage stop, and means for stopping said rearward yielding move ment. i

29. I n a typewriting machine, a line lock .mechanism comprising a vertically yielding stop on the carriage, a coperating stop on the frame of they machine yielding rearwardly to said carriage stop, and means for stopping said rearward yielding movement comprising a locking bar and a limiting stop for said locking bar.

Signed at Arlington, in the county of Bennington and State of Vermont this seventh day-of April A. D. 1903.

WILLIAM C. FARNUM. lit'nesses:

J. J. SHAKSHOBER, O. E. ADAMS. 

